JP2017134746A - Disaster prevention system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disaster prevention system that facilitates laying work of wiring, etc. into a building structure, and which can be simplified, made smaller, and saved in space.SOLUTION: A disaster prevention system includes: one wire 3 bundling at least one detecting optical fiber cable 1 for detecting a fire temperature, intrusion and water leakage, a lighting optical fiber cable 2 for illuminating a monitoring area and a communication optical fiber cable 21 to exchange information with the monitoring area; and a disaster prevention receiver 4 connected to the wire 3. The disaster prevention receiver 4 includes: fire detection means 6 connected to the detecting optical fiber cable 1 to detect a temperature indicating a fire; intrusion detection means 7 to detect intrusion; water leakage detection means 8 to detect water leakage; alarm generation means 9 to receive an abnormality signal detected by the fire detection means 6, the intrusion detection means 7 or the water leakage detection means 8, and generate an alarm; notification means 10 to notify the outside of an abnormality content and an abnormality occurrence place in response to the abnormality signal; an information control part connected to the communication optical fiber cable; and a communication wire.SELECTED DRAWING: Figure 1

Description

  The present invention includes a fire, intrusion, water leak detection means for detecting a fire, intrusion, water leak in a building such as a building, house, factory, smart house, data center, etc., and a lighting means for illuminating a monitoring area. The present invention relates to a disaster prevention system provided with communication means for displaying information in a monitoring area and controlling equipment.

  As a means of detecting fire, intrusion, and water leakage in buildings, houses, factories, smart houses, data centers, etc., for example, when detecting fire, the fire is detected by a smoke detector or heat detector (patented) Documents 1 and 2) Further, intrusion detection, an intrusion is detected by an infrared beam detector or a human sensor (Patent Document 3), and in water leakage detection, a pair of detection electrodes. There is a detecting means for detecting water leakage by being immersed in water leakage and short-circuiting a pair of detection electrodes (Patent Document 4).

  Further, as illumination means, there is a means for illuminating by arranging an illuminator at a place to be illuminated and wiring a power supply wire. As a communication means, there is a means for forming an optical LAN by wiring an optical fiber in a home LAN system or an office LAN.

  These detection means and lighting means are in charge of disaster prevention by separate devices, and since there is no common configuration, the equipment is complicated and laid to integrate the functions of detecting fire, intrusion, and water leakage including lighting and communication It is considered difficult in terms of work and management, and there is no disaster prevention system that integrates these functions.

Japanese Patent Laid-Open No. 59-1321994 JP 2002-133550 A JP 2006-99501 A JP 2009-175811 A

  As described above, conventionally, there has been no disaster prevention system that integrates functions for detecting fire, intrusion, and water leakage including lighting and communication. Therefore, in order to provide a disaster prevention system that detects fire, intrusion, and water leakage including lighting in a single building, each detection system must be laid separately, and a system that integrates and detects these detection systems. Therefore, it is necessary to individually construct a notification system, which complicates the configuration, complicates laying work, increases the area occupied by the system, and reduces the effective area.

  The inventor of the present invention paid attention to the function of the optical fiber as a result of repeated research to solve such a problem. As a detection means using the function of the optical fiber, for example, backscattered light is received, the temperature is detected by the Raman scattered light intensity changed by the heat applied to the optical fiber, and the temperature is detected. 2. Description of the Related Art An optical fiber distributed temperature sensor that identifies the temperature and position of an optical fiber by measuring the time until it returns to OTDR using an OTDR (Optical Time Domain Reflect-meter) technique is known (Japanese Patent Laid-Open No. 7-101). No. 167717), it is possible to detect a fire by detecting the temperature rise of the optical fiber due to the heat of the fire.

  Also, the temperature is measured by the intensity of the Brillouin scattered light in the optical fiber, the position in the optical fiber is specified from the time until the backscattered light returns to the incident end, and the light is shifted by the frequency shift of the Brillouin scattered light. It is known that distortion of an optical fiber caused by touching the fiber can be detected and a location where the distortion has occurred can be identified from the time until Brillouin scattered light returns to the incident end (Japanese Patent Laid-Open No. 4-248426). .

  In addition, the optical fiber is laid in a loop shape, an optical branching coupling element is connected to the end of the optical fiber, and the light emitted from the light source is propagated clockwise and counterclockwise to the end of the optical fiber. It is known that the difference in the delay time is detected as a phase displacement (optical fiber ring interference type) to detect the vibration of the optical fiber and identify the place where the vibration has occurred (Japanese Patent Laid-Open No. 2000-46564). With this function as an intruder detection device, an intruder detection device using an optical fiber ring interference type sensor that detects the intrusion by detecting the vibration and vibration position of the optical fiber from the intensity change of the interference light in the optical fiber is known ( JP, 2005-345137, A).

  In addition, an expandable or contractible polymer water-absorbing material is provided in the optical fiber, the return of the Brillouin scattered light is received, and the expansion or contraction of the absorbed polymer water-absorbing material due to a change in the frequency of the Brillouin scattered light. It is known that the location where the distortion has occurred can be identified by detecting the strain in the optical fiber and measuring the time until the Brillouin scattered light returns to the incident end (B-OTDR) (Japanese Patent Application Laid-Open No. 2004). -45226).

  In addition, an inflatable pressing member is provided in the optical fiber so that the return of Rayleigh scattered light is received, and the transmission loss due to distortion of the optical fiber is increased by the expansion of the absorbed pressing member due to the change in the return light amount of the Rayleigh scattered light. It is known that a location where distortion has occurred can be identified by measuring the time until Rayleigh scattered light returns to the incident end (OTDR) (Japanese Patent Laid-Open No. 2004-45218). Publication).

  The OTDR that detects the strain applied to the optical fiber due to Rayleigh scattering from the loss of the optical fiber is disclosed in Japanese Patent Laid-Open No. 3-68825. As for OTDR, C-OTDR (Coherent-Optical Time Domain Reflectometer) for improving sensitivity by heterodyne reception of Rayleigh scattering and B-OTDR (Brillouin Optical Time Domain Reflectometer) based on Brillouin scattering phenomenon due to distortion of optical fiber It is disclosed in the 2011-17652 gazette.

  In illumination, an illumination unit is known in which light is incident on an optical fiber and irradiated from an illuminator provided at an end (Japanese Patent Laid-Open No. 2005-71870). In communication, there is known a communication means for transmitting / receiving data as an optical LAN using an optical fiber by providing an O / E converter in a home LAN (Japanese Patent Laid-Open No. 2003-37560). The inventor of the present invention has completed the present invention by bundling optical fibers and performing a single wire for the function of such optical fibers.

  The object of the present invention is to integrate the functions of detecting fire, intrusion, and water leakage including lighting and communication with a single wire, thereby facilitating laying work such as wiring to a building. The object is to provide a disaster prevention system that can be simplified, reduced in size, and saved in space.

(1) In order to achieve the above object, the disaster prevention system of the present invention includes at least one optical fiber cable for detection for detecting temperature, intrusion, and water leakage due to a fire, and illumination light for illuminating a monitoring area. A wire bundled with a fiber optic cable for communication and a fiber optic cable for communication; the wire is laid at a predetermined location to be monitored; and a disaster prevention receiver connected to the optical fiber cable for detection; The machine is connected to the detection optical fiber cable to detect a fire temperature, a fire detection means for detecting an intrusion, an intrusion detection means for detecting an intrusion, a water leak detection means for detecting water leakage, the fire detection means, the intrusion detection means, Receiving an abnormality signal detected by the water leakage detection means, an alarm generation means for issuing an alarm, and an abnormality content and an abnormality occurrence location according to the abnormality signal are notified to the outside. That has a notification means has information control unit to be connected to the communication optical fiber cable, and a communication line.

  According to the disaster prevention system of (1) above, it is possible to detect fires, intrusions, and water leaks with a single wire, and to illuminate predetermined locations and to communicate predetermined information, so laying such as wiring to buildings While facilitating the work, the system can be simplified, downsized and space-saving, and connected to the optical fiber cable for detection to detect the temperature due to fire, the fire detection means, the intrusion detection means, Upon receiving the abnormality signal detected by the water leakage detection means, the alarm generation means issues an alarm, and the notification means notifies the abnormality content and the abnormality occurrence location according to the abnormality signal to the outside, so that prompt disaster prevention activities are possible. Moreover, since the state of the monitoring area can be easily confirmed by making light incident on the optical fiber core of the optical fiber cable for illumination, prompt disaster prevention activities are possible.

(2) Preferably, in the disaster prevention system of (1), the optical fiber cable for illumination is composed of a plurality of optical fiber cores, and connects each optical fiber core and a light source unit, and the fire detection means, When receiving the abnormality signal detected by the intrusion detection means and the water leakage detection means, the light amount of the light source portion of the optical fiber core wire of the illumination optical fiber cable arranged in the monitoring area where the abnormality occurrence location has occurred is controlled. A control unit having a function may be provided.

  According to the disaster prevention system of (2) above, when the abnormality signal detected by the fire detection means, the intrusion detection means, and the water leakage detection means is received, the illumination arranged in the monitoring area of the location where the abnormality signal was received The amount of light from the optical fiber core of the optical fiber cable is controlled and the monitoring area is clearly illuminated, so if you have a monitoring camera in the monitoring area, you can immediately check the abnormal state, More prompt and effective disaster prevention activities are possible.

(3) Preferably, in the disaster prevention system according to (1) or (2), the communication optical fiber cable distributes information from the disaster prevention receiver via the information control unit, and also for the communication. The optical fiber cable distributes information from the outside obtained by the communication line connected to the disaster prevention receiver via the information control unit, and is opposite to the disaster prevention receiver to which the communication optical fiber cable is connected. It is preferable that a terminal for displaying information and / or a controller for controlling a predetermined device be provided.

  According to the disaster prevention system of (3) above, predetermined information can be distributed and displayed by the optical fiber cable for communication via the information control unit, and a predetermined device is controlled by a controller according to the predetermined information. it can. For example, when an abnormal signal detected by the fire detection means, the intrusion detection means, or the water leakage detection means is received, information on a monitoring camera arranged in the monitoring area of the location that received the abnormal signal via the information control unit Can be distributed to the outside and the abnormal state can be confirmed immediately. In addition, it is possible to control an air conditioner, an illuminator, a smoke evacuation device, etc. via a controller connected to the communication optical fiber cable via the information control unit according to information from the outside. Disaster prevention activities are possible.

(4) Preferably, in the disaster prevention system according to any one of the above (1) to (3), the optical fiber cable for detection may be composed of a single optical fiber cable.

  According to the disaster prevention system of (4) above, it is possible to further facilitate the laying work such as wiring to the building, and further simplify, downsize, and save space of the system.

(5) Preferably, in the disaster prevention system according to any one of (1) to (3), the optical fiber cable for detection includes an optical fiber cable for detecting a temperature due to a fire, and light for detecting intrusion and water leakage. A fiber cable is bundled with the wire to form one, the fire detection means is connected to an optical fiber cable for temperature detection by fire, and the fire detection means is connected to the optical fiber cable for intrusion and leakage detection. The water leakage detection means may be connected.

  According to the disaster prevention system of (5) above, the detection optical fiber cable includes one optical fiber cable for detecting temperature due to fire and one optical fiber cable for detecting intrusion and water leakage bundled with the wire. Since the fire detection means is connected to the optical fiber cable for temperature detection by fire, and the intrusion detection means and the water leakage detection means are connected to the optical fiber cable for detection of intrusion and water leakage, In addition to facilitating installation work such as wiring to buildings, the system can be simplified, downsized, and space can be saved, and fire, intrusion, and water leakage can be detected with high resolution and high accuracy.

(6) Preferably, in the disaster prevention system according to any one of (1) to (3), the optical fiber cable for detection includes a plurality of optical fiber cables for detecting each of temperature, intrusion, and water leakage due to fire. When the fire detection means, the intrusion detection means, and the water leakage detection means are separately connected to the optical fiber cables for detection of temperature, intrusion, and water leakage due to fire, which are bundled into a wire and configured as one. Good.

  According to the disaster prevention system of (6) above, the detection optical fiber cable is configured as a single bundle of a plurality of optical fiber cables for detection of temperature, intrusion, and water leakage due to fire, bundled with the wire, Since the fire detection means, the intrusion detection means, and the water leak detection means are separately connected to the optical fiber cables for detection of temperature, intrusion, and water leakage due to fire, the installation work such as wiring to the building is performed. The system can be simplified, the system can be simplified, the size can be reduced, and the space can be saved, and fire, intrusion, and water leakage can be detected with higher resolution and higher accuracy.

(7) Preferably, in the disaster prevention system according to any one of the above (1) to (4), the fire detection means, the intrusion detection means, and the water leakage detection means included in the disaster prevention receiver are a single bridal scattering detection. Any means may utilize Brillouin scattering in the detection method.

  According to the disaster prevention system of (7), the fire detection means, the intrusion detection means, and the water leakage detection means of the disaster prevention receiver all use Brillouin scattering for the detection method. The intrusion detection means and the water leakage detection means can be configured as a single detection means, whereby the installation is simplified, and further space saving and downsizing of the disaster prevention receiver can be achieved.

(8) Preferably, in the disaster prevention system according to any one of (1) to (6), the fire detection means included in the disaster prevention receiver uses Raman scattering as a detection method, and the intrusion detection means and The water leakage detection means may use Rayleigh scattering as a detection method.

  According to the disaster prevention system of (8) above, the occurrence and location of fire can be detected quickly and with higher resolution, and the occurrence and location of entry and leakage can be detected with higher resolution.

(9) Preferably, in the disaster prevention system according to any one of (1) to (6), the fire detection means included in the disaster prevention receiver uses Raman scattering as a detection method, and the intrusion detection means includes An optical fiber ring interference type is used for the detection method, and the water leakage detection means may use Rayleigh scattering for the detection method.

  According to the disaster prevention system of (9) above, the occurrence and location of a fire can be detected quickly and with higher resolution, and the intrusion can be detected quickly and with higher resolution. Can be detected with higher resolution.

(10) Preferably, in the disaster prevention system according to any one of (1) to (9), the wire may be laid on a predetermined floor to be detected.

  According to the disaster prevention system of (10) above, the occurrence and occurrence of a fire can be detected quickly, the intrusion can be detected quickly, and the occurrence and occurrence of water leakage can be detected more quickly.

  The disaster prevention system according to the present invention integrates functions for detecting fire, intrusion, and water leakage including lighting with a single wire, thus facilitating laying work such as wiring to a building and simplifying the system. , Miniaturization, and space saving.

FIG. 1 is a schematic view showing a first embodiment of a disaster prevention system according to the present invention. FIG. 2 is an enlarged longitudinal sectional view of the optical fiber cable for detection shown in FIG. FIG. 3 is a cross-sectional view of the detection optical fiber cable shown in FIG. 2 taken along line AA. FIG. 4 is a schematic view showing a second embodiment of the disaster prevention system according to the present invention. FIG. 5 is a schematic view showing a third embodiment of the disaster prevention system according to the present invention. FIG. 6 is a schematic view showing a fourth embodiment of the disaster prevention system according to the present invention. FIG. 7 is a schematic view showing an example in which the disaster prevention system according to the present invention is applied to a building.

  Hereinafter, first to fourth embodiments of a disaster prevention system according to the present invention will be described in detail with reference to FIGS. 1 to 7. First, an overall configuration common to each embodiment will be described, and then each of the first to fourth embodiments will be described.

<Common overall configuration>
As shown in FIGS. 1, 4, 5, and 6, the disaster prevention system according to the present embodiment includes a single detection optical fiber cable 1 and a monitoring area for detecting temperature, intrusion, and water leakage due to fire. A wire 3 bundled with a fiber optic cable 2 for illuminating a communication, a fiber optic cable 21 for communication to distribute information to a monitoring area, and a disaster prevention receiver 4 connected to the fiber optic cable 1 for detection. Yes.

  The disaster prevention receiver 4 is connected to at least one optical fiber cable 1 of the detection optical fiber cable 1 to detect a fire due to a fire detection means 6, an intrusion detection means 7 for detecting an intrusion, and a water leak detection for detecting a water leak. Means 8, fire detection means 6, intrusion detection means 7, alarm detection means 9 for receiving an abnormality signal detected by water leakage detection means 8, and alarm contents according to the abnormality signal and the location where the abnormality occurred are notified to the outside. The informing means 10 is provided.

  The fire detection means 6 provided in the disaster prevention receiver 4 receives the backscattered light from the optical fiber cable of the detection optical fiber cable 1 and the intensity of the backscattered light changed by the heat of the fire applied to the optical fiber cable. Is used to measure the temperature and detect the heat, and to use a temperature detector having a function of identifying the location from the position of the optical fiber cable to which the heat has been applied from the time until the backscattered light returns to the incident end. For example, the temperature detector sets a threshold temperature that is an abnormal temperature in the range of 40 ° C. to 100 ° C., and determines that a fire occurs when the measured temperature rises to the abnormal temperature in a short time, and detects the detected optical fiber cable. Specify the location from the location. In the detection method of the backscattered light in the fire detection means 6, Brillouin scattering or Raman scattering anti-Stoke light is used.

  In addition, the determination method of fire is not the time when the temperature rises, but the temperature is detected at each location in the room where the detection optical fiber cable 1 is laid, and the average temperature is calculated. An abnormal temperature and location may be detected. Further, the location where the temperature in the room where the detection optical fiber cable 1 is laid is identified, and the abnormal temperature is detected from the difference between the temperature of the detection optical fiber cable in the terminator and the temperature inside the room, for example. And the location may be detected. Thereby, even in the case of a fire in which the temperature gradually increases, the fire can be detected promptly.

  Further, the intrusion detection means 7 receives backscattered light from the optical fiber cable of the detection optical fiber cable 1 and distorts the optical fiber cable by touching the optical fiber cable due to a change in intensity or frequency of the backscattered light. An intrusion detector having a function of identifying a location where distortion has occurred by detecting the time until the backscattered light returns to the incident end is used. When detecting the distortion of the optical fiber due to the weight on the floor when the intruder walks, the intrusion detector determines that the intrusion has occurred and identifies the location from the detected position of the optical fiber cable. In the detection method of the backscattered light in the intrusion detection means 7, the Brillouin frequency shift amount due to Brillouin scattering and the reduction in transmission loss due to the distortion of the backscattered light intensity due to Rayleigh scattering are used.

  Further, as the intrusion detection means 7, the optical fiber cable of the detection optical fiber cable 1 is laid in a loop shape, an optical branching coupling element is connected to the optical fiber cable, and the light emitted from the light source is turned clockwise to the optical fiber cable. And it propagates counterclockwise, detects the difference in the delay time of the propagation light as a phase change (optical fiber ring interference type), detects the vibration of the optical fiber cable, and if it detects the vibration, it is judged that there has been intrusion, An intrusion detector using an optical fiber ring interference type for specifying the detected location as a detection method can be used.

  Further, the water leakage detection means 8 is provided with an expandable or contractible polymer water-absorbing material inside the outer coating covering the optical fiber cable constituting the optical fiber cable for detection 1, and from the optical fiber cable. The backscattered light is received, and the change in the intensity or frequency of the backscattered light detects the strain in the optical fiber cable due to the expansion or contraction of the water-absorbing polymer water-absorbing material, and the backscattered light returns to the incident end. A water leak detector having a function of identifying a location where distortion has occurred from the time until it comes is used. When the distortion is detected, the water leakage detector determines that there is water leakage and identifies the location from the detected position of the optical fiber cable. In the method of detecting the backscattered light in the water leakage detection means 8, the reduction in transmission loss due to the Brillouin frequency shift amount due to Brillouin scattering and the distortion of the backscattered light intensity due to Rayleigh scattering is used.

  The distinction between intrusion and water leakage detected by the strain of the optical fiber cable is determined by the length of time that the strain is applied. In the case of intrusion, distortion does not occur for a long time at the same place due to intruders walking etc., and the amount of distortion, that is, the reduction in transmission loss also fluctuates in a short time, but in the case of water leakage, the same place takes a long time Since distortion occurs over the whole area, it can be distinguished.

  Further, the detection optical fiber cable 1 may be a single optical fiber cable. Also, a plurality of optical fiber cables for detecting fire temperature, intrusion, and water leakage are prepared and bundled into one as a wire. Also good. When the detection optical fiber cable 1 is composed of one optical fiber cable, the fire detection means 6, the intrusion detection means 7 and the water leakage detection means 8 connected to the detection optical fiber cable 1 are optical path branching devices (not shown). ) May be connected to a single optical fiber cable. When the detection optical fiber cable 1 is composed of two optical fiber cables, the fire detection means 6 is connected to one detection optical fiber cable 1, and the other detection optical fiber cable 1 is connected to one detection optical fiber cable 1. The intrusion detection means 7 and the water leakage detection means 8 may be connected via an optical path branching device (not shown). When the detection optical fiber cable 1 is composed of a plurality of optical fiber cables that separately detect the temperature, intrusion, and water leakage due to fire, the fire detection means 6, the intrusion detection means 7, and the water leak detection means 8 for each optical fiber cable. Are connected individually.

  Further, even when the detection optical fiber cable 1 is composed of a single optical fiber cable, when the Brillouin scattering detection means is used, the Brillouin scattering detection means includes the fire detection means 6, the intrusion detection means 7, and the water leakage detection means 8. Therefore, the Brillouin scattering detection means may be connected to one optical fiber cable.

  The above-described optical fiber cable for detection 1 is preferably a single mode fiber in order to improve the detection sensitivity and the specific accuracy of the position of the detection point. The wire may have a tension member to obtain tensile strength, and may cover the outer layer to such an extent that the detection accuracy is not significantly reduced. Further, the detection optical fiber cable 1 itself may have a tension member as necessary.

  Further, the alarm generating means 9 of the disaster prevention receiver 4 is connected to the alarm device 12 by the wiring 11 and when the abnormal signal detected by the fire detecting means 6, the intrusion detecting means 7 and the water leakage detecting means 8 is received, Instructs the generation of an alarm.

  In addition, the notification means 10 of the disaster prevention receiver 4 that notifies the abnormality content and the location where the abnormality has occurred to the outside is connected to the external security room, fire department, police station, and other related parts via the communication line 13 and receives an abnormality signal. In response to the abnormality signal, the contents of the abnormality and the information on the abnormal part are notified to the related parts. In this example, the notification to the outside by the notification means 10 is performed via the communication line 13, but may be performed wirelessly.

  Moreover, the optical fiber cable 2 for illumination bundled with the wire 3 is comprised by the bundle | flux of the several optical fiber core wire 2a according to the number of illumination locations in this example. In the light source unit 14 that makes light incident on the optical fiber core 2a, it can be incident on each optical fiber core 2a separately, and each light amount can be controlled to ON / OFF, increase / decrease, flashing and the like.

  Further, the light source section 14 of each optical fiber 2a and the fire detection means 6, the intrusion detection means 7 and the water leakage detection means 8 of the disaster prevention receiver 4 are connected by wiring in the panel. When the abnormality signal detected by the means 7 and the water leakage detection means 8 is received, the amount of light of each of the light source portions 14 of the optical fiber core wire 2a in the illumination optical fiber cable 2 arranged in the monitoring area where the abnormality has occurred is detected. A control unit 16 having a control function is provided. There are various methods for controlling the amount of light of each light source unit 14 such as changing the lighting state from OFF to ON, blinking repeatedly ON and OFF, changing from a dark state of the security light to a bright lighting state, and so on. A control method may be used.

  In addition, in this example, the communication optical fiber cable 2 bundled with the wire 3 distributes information from the disaster prevention receiver via the information control unit 15, and sends predetermined information to the information display terminal in the monitoring area. The controller controls a predetermined device in the monitoring area according to information such as an instruction from the disaster prevention receiver via the information control unit. In addition, information from the outside may be reflected on the information display terminal via the information control unit by the communication line 13 connected to the disaster prevention receiver, and controlled via the information control unit by information such as an external instruction. A predetermined device connected to the device may be controlled. Furthermore, the telephone may be connected to the outside through the communication line 13 with the information control unit of the disaster prevention receiver by a telephone connected to the controller, and the information on the disaster prevention receiver may be communicated by the information terminal connected to the controller. Information may be exchanged with the outside via the control unit and the communication line 13.

  For example, the information of the monitoring camera arranged in the monitoring area of the location that received the abnormal signal detected by the fire detecting means, the intrusion detecting means, and the water leakage detecting means and received the abnormal signal via the information control unit is sent to the outside. Distribute and immediately check for abnormal conditions and conduct disaster prevention activities. In addition, it is possible to control an air conditioner, an illuminator, a smoke evacuation device, etc. via a controller connected to the communication optical fiber cable via an information control unit by information such as an instruction from the outside. And effective disaster prevention activities become possible.

  For use in smart houses, etc., not only the above-mentioned measures for disaster prevention, but also connected to the communication line 13 via the Internet (not shown) and connected to the controller via the information control unit, For example, air conditioner, TV, radio, audio, washing machine, dryer, microwave oven, refrigerator, IH cooker, water heater, floor heater, game machine, web camera, fuel cell, fuel cell combine water heater, solar cell You may control a sprinkler.

  In construction of disaster prevention system with fire, intrusion, leakage detection and lighting and communication means constructed in this way, disaster prevention receiver 4 is built in buildings, houses, factories, smart houses, data centers, etc. The wire 3 bundled with the optical fiber cable 1 for detection, the optical fiber cable 2 for illumination, and the optical fiber cable 21 for communication is uniformly distributed in a monitoring area inside or outside the building in a single stroke. Lay down. For example, it is laid in a passage, a room, or the like that requires monitoring from the entrance and exit of a building so as to stretch around places such as a floor, a wall, and a ceiling according to the monitoring contents.

  At this time, the wire 3 may be meandered so as to be densely wired with respect to the passage so that the detection of the wire 3 can be performed quickly and accurately with high resolution. When laying the wire 3, it is more preferable to wire and lay it on the floor or passage in order to sense floor vibration and distortion caused by the intruder walking. When laying the wire under the surface layer of the flooring, it is possible to detect the vibration and distortion of the intruder with high sensitivity by laying the wire so as to be fixed to the surface layer. In addition, you may provide the location which is not fixed to the surface layer so that the stress of the surface layer by a temperature change may not be transmitted to the wire 3. FIG.

  Further, the optical fiber cable 2a is separated from the illumination optical fiber cable 2 for each monitoring area that needs illumination. A terminator 19 is attached to the tip of the detection optical fiber cable 1, and an illuminator 20 is attached to the tip of the optical fiber core wire 2 a cut from the illumination optical fiber cable 2.

  The alarm device 12 connected to the alarm generating means 9 does not need to be installed in the building, and may be installed in a place away from the building, for example, a security guard room.

  FIG. 7 is a schematic view showing an example in which the disaster prevention system according to the present invention is applied to the building 28. In this example, the disaster prevention receiver 4 and the alarm device 12 are installed at appropriate locations of the building 28. A passage 30 required for monitoring continues from the entrance 29 of the building 28 to the inside. A wire 3 in which the optical fiber cable for detection 1, the optical fiber cable for illumination 2 (2a), and the optical fiber cable for communication 21 are bundled is laid in the passage 30. The wires 3 are wired evenly and uniformly, and meander in a stroke along the passage 30. An optical fiber core wire 2 a is cut from the illumination optical fiber cable 2. The optical fiber core wire 2a is wired to each monitoring area where illumination is required. An illuminator 20 is attached to the tip of the optical fiber core wire 2a. The illuminator 20 is installed on the wall 31. A predetermined information display terminal 17 and a controller 18 are connected to the communication optical fiber cable 21. The information display terminal 17 displays information provided from the communication optical fiber cable 21. For example, predetermined devices such as a room light 32, an air conditioner 33, a telephone 34, an information terminal 35, and a monitoring camera 36 are connected to the controller 18. The telephone 34 and the information terminal 35 can communicate with the outside via the controller 18.

  The disaster prevention system configured as described above is a monitoring area in or outside a building where a wire 3 bundled with a detection optical fiber cable 1, an illumination optical fiber cable 2, and a communication optical fiber cable is laid. When it occurs, the fire detection means 6 that has received the backscattered light from the optical fiber cable of the detection optical fiber cable 1 measures the temperature to detect the temperature that is judged to be a fire, and identifies the detected location The fire and the fire location are detected and an abnormal signal is transmitted to the alarm generating means 9 and the notifying means 10, and the alarm generating means 9 receiving the abnormal signal instructs the alarm device 12 to generate an alarm, and the notifying means 10 is externally provided. Notify fire departments and fire locations to relevant security offices and fire departments.

  When receiving the abnormality signal detected by the fire detection means 6, the control unit 16 controls the light source unit 14 of each optical fiber core wire 2a in the illumination optical fiber cable 2 arranged in the monitoring area where the fire has occurred. The predetermined illumination is performed in the monitoring area. In addition, predetermined information is displayed on the information display terminal connected to the communication optical fiber cable 21 via the information control unit, and a predetermined device connected to the controller is controlled. For example, in the case of a fire, a smoke evacuation device connected to the controller is operated, and the status of the fire is confirmed by a surveillance camera.

  Further, when there is an intrusion, the intrusion detection means 7 that receives the backscattered light from the optical fiber cable of the detection optical fiber cable 1 detects the distortion and specifies the place where the distortion has occurred, so that the intrusion and the intrusion occur. The location is detected and an abnormal signal is transmitted to the alarm generating means 9 and the notifying means 10, and the alarm generating means 9 receiving the abnormal signal instructs the alarm device 12 to generate an alarm, and the notifying means 10 is an external security guard room. , Notify the intrusion and the intrusion location to the relevant departments such as the police station.

  And when receiving the abnormal signal detected by the intrusion detection means 7, the control unit 16 controls the light source unit 14 of the optical fiber core wire 2a in the illumination optical fiber cable 2 arranged in the monitoring area where the intrusion has occurred, Predetermined illumination in the monitoring area. In addition, the video of the monitoring camera in the monitoring area is transmitted via the communication optical fiber cable 21.

  In addition, when an intrusion is detected and an alarm is issued, in the disaster prevention receiver, it is determined that the intrusion occurs when a person is not allowed to enter or when an authorized person does not enter, and the alarm 12 is instructed to generate an alarm. Further, the notification means 10 notifies the relevant part connected by the communication line 13.

  In addition, when there is water leakage, the water leakage detection means 8 that has received the backscattered light from the optical fiber cable of the detection optical fiber cable 1 detects the distortion and specifies the location where the distortion has occurred, so that the water leakage and water leakage are detected. The location is detected and an abnormal signal is transmitted to the alarm generating means 9 and the notifying means 10, and the alarm generating means 9 receiving the abnormal signal instructs the alarm device 12 to generate an alarm, and the notifying means 10 is an external security guard room. Notify the relevant places such as water leaks and leak points.

  And when the abnormal signal detected by the water leak detection means 8 is received, the control part 16 controls the light source part 14 of the optical fiber core wire 2a in the optical fiber cable 2 for illumination arranged in the monitoring area where the water leak occurred, Predetermined illumination in the monitoring area. In addition, the video of the monitoring camera in the monitoring area is transmitted via the communication optical fiber cable 21.

  Thus, according to the disaster prevention system provided with fire, intrusion, water leakage detection and illumination and communication means, fire, intrusion, water leakage can be reliably detected, fire detection means 6, intrusion detection means 7, water leakage detection means 8 The alarm generation means 9 instructs the alarm device 12 to generate an alarm, and the notification means 10 notifies the abnormality content and the location where the abnormality has occurred to the outside, and also illuminates the location where the abnormality has occurred. Activities are possible. At this time, by photographing the location of the abnormality with a surveillance camera (not shown) and monitoring it in the security guard room, the situation of the location of the abnormality can be quickly confirmed, and necessary disaster prevention measures can be taken promptly. If it is a false alarm, the alarm can be canceled. If it is a false report, the disaster prevention receiver can be restored via the communication line 13.

  In addition, since the optical fiber cable for illumination 2 and the optical fiber cable for communication 21 are bundled with the optical fiber cable for detection 1 to form one wire 3, it is easy to install the wiring to the building. The system can be simplified, reduced in size, and saved in space.

  Next, 1st thru | or 4th embodiment of the disaster prevention system which concerns on this invention is each demonstrated.

<First Embodiment>
FIG. 1 shows a first embodiment of a disaster prevention system according to the present invention. In the first embodiment, the detection optical fiber cable 1 is bundled with the illumination optical fiber cable 2 and the communication optical fiber cable 21 to form one wire 3. In the first embodiment, the detection optical fiber cable 1 is composed of one optical fiber cable 1a for detecting temperature, intrusion, and water leakage due to fire, and includes a fire detection means 6 and an intrusion detection means included in the disaster prevention receiver 4. 7, connected to the water leakage detection means 8.

  In the first embodiment, Brillouin scattering detection means 5, which is a detection method using Brillouin scattering having fire detection means 6, intrusion detection means 7, and water leakage detection means 8, is used. A tension member (not shown) is disposed on the wire 3.

  Fire detection detects the fire from the function to detect the temperature by measuring the backscattered light intensity of Brillouin scattering, and intrusion detection detects the distortion by measuring the Brillouin frequency shift amount, such as when the intruder steps on the wire Intrusion is detected from the strain of the optical fiber cable, and water leakage is detected by measuring the Brillouin frequency shift amount, detecting the strain, and the water entering the detection optical fiber cable and the absorber deforms, causing the internal stress of the optical fiber to be deformed. Detects water leakage from strain.

  In the detection optical fiber cable 1, in the first embodiment, in the cross section inside the water-permeable outer coating 22 covering the detection optical fiber cable 1 a constituting the detection optical fiber cable 1, The polymer water-absorbing material 23 that is expandable or contractible by absorbing water is disposed in the longitudinal direction of the optical fiber cable 1a (see FIGS. 2 and 3).

  In the cross section of the optical fiber cable 1a, a polymer water-absorbing material 23 that is swollen by water from the central axis toward the outer sheath 22 is disposed, and 30% to 70% of the cross-sectional area is the polymer water-absorbing material 23. A member 25 that does not swell or shrink due to water is provided to extend in the longitudinal direction, and a force that bends the optical fiber cable 1a due to water absorption is generated, bending stress is applied to the optical fiber cable 1a, and the optical fiber cable 1a is distorted. Water leakage is detected by increasing the transmission loss of the optical fiber cable 1a due to generation or bending.

  Further, in the outer coating 22, an indeformable member 24 is intermittently arranged in the longitudinal direction of the optical fiber cable 1a at the axially symmetric position of the polymer-based water absorbing material 23, so that distortion and bending are generated more strongly. To increase the detection sensitivity. The optical fiber cable for detection 1a of the first embodiment is structurally the same as the optical fiber cable 1c for detecting intrusion and water leakage and the optical fiber cable 1e for detecting water leakage.

  In this example, the illumination optical fiber cable 2 is composed of a bundle of a plurality of optical fiber cores 2a in accordance with the number of illumination locations, and is connected to the light source unit 14 that makes light incident on the optical fiber core 2a. Therefore, each light quantity can be controlled so that it can enter into each optical fiber core wire 2a separately.

  Moreover, the light source part 14 of each optical fiber core wire 2a and the fire detection means 6, the intrusion detection means 7 and the water leakage detection means 8 of the disaster prevention receiver 4 are connected by wiring in the panel. A control unit 16 is provided. Moreover, the light source part 14 of each optical fiber core wire 2a and the intrusion detection means 7 of the disaster prevention receiver 4 are connected by the wiring in a board.

  In the first embodiment, the communication optical fiber cable is composed of a plurality of communication optical fiber cables. The communication optical fiber cable is arranged at a predetermined location, and an information display terminal is installed to display necessary information. In addition, a communication optical fiber cable is arranged at a predetermined location, and a controller is installed to control necessary equipment. In addition, you may connect the optical fiber cable branched by providing an optical branching device in the predetermined location of the optical fiber cable for communication to an information display terminal or a controller. In this case, one optical fiber cable for communication may be laid and branched at a predetermined location.

  According to the first embodiment configured as described above, the detection optical fiber cable 1 configured by one detection optical fiber cable 1a and the illumination optical fiber cable 2 are bundled to form one wire 3. Therefore, it is possible to facilitate the laying work such as wiring to the building and to simplify, downsize, and reduce the space of the system.

  Further, since the fire detection means 6, the intrusion detection means 7 and the water leakage detection means 8 all use Brillouin scattering for the detection method, the fire detection means 6, the intrusion detection means 7 and the water leakage detection means 8 are combined into one Brillouin. It can be configured as the detection means 5, whereby the installation is simplified, and further space saving and downsizing of the disaster prevention receiver 4 can be achieved.

  When an abnormality signal detected by the fire detection means 6, the intrusion detection means 7 and the water leakage detection means 8 is received, the alarm generation means 9 instructs the alarm device 12 to generate an alarm, and the notification means 10 is an external security guard. The control section 16 notifies the light source section 14 of the optical fiber core wire 2a in the illumination optical fiber cable 2 arranged in the monitoring area where the intrusion has occurred. Control, illuminate predetermined in the monitoring area, and confirm the status of the monitoring area by the monitoring camera installed in the monitoring area, so that prompt disaster prevention activities are possible.

  In the first embodiment, the outer sheath 22 of the detection optical fiber cable 1a is intermittently undeformed in the longitudinal direction of the detection optical fiber cable 1a at the axially symmetrical position of the polymer water absorbent 23. Since the member 24 is disposed, when the polymer water-absorbing material 23 absorbs water and expands or contracts, the detection optical fiber cable 1a is detected by the non-deformable member 24 disposed at the expansion or contraction position. Since the bending of the cable 1a increases and the distortion and transmission loss of the detection optical fiber cable 1a increase, the occurrence and location of water leakage can be detected with higher resolution and higher accuracy.

Second Embodiment
FIG. 4 shows a second embodiment of the disaster prevention system according to the present invention. In the second embodiment, the optical fiber cable for detection 1 is configured as one bundled with an optical fiber cable 1b for detecting temperature due to fire and an optical fiber cable 1c for detecting intrusion and water leakage, bundled with a wire, The fire detection means 6 is connected to the optical fiber cable 1b for temperature detection due to fire, and the intrusion detection means 7 and the leak detection are detected via an optical path device (not shown) to the optical fiber cable 1c for intrusion / leakage detection. Means 8 are connected.

  In the second embodiment, the fire detection means 6 uses Raman scattering anti-Stokes light for the detection method, and the intrusion detection means 7 and the water leakage detection means 8 both use Rayleigh scattering for the detection method.

  Moreover, also in 2nd Embodiment, the optical fiber cable 1c has the same structure as the optical fiber cable 1a similarly to 1st Embodiment. According to such a configuration, in particular, the occurrence and location of fire can be detected quickly and with higher resolution, and the occurrence and location of intrusion and water leakage can be detected with higher resolution.

<Third Embodiment>
FIG. 5 shows a third embodiment of the disaster prevention system according to the present invention. In the third embodiment, the optical fiber cable for detection 1 includes an optical fiber cable 1b for detecting temperature due to fire, an optical fiber cable 1d for detecting intrusion, and an optical fiber cable 1e for detecting water leakage. The bundle is configured as one, the fire detection means 6 in the optical fiber cable 1b for temperature detection by fire, the intrusion detection means 7 in the optical fiber cable 1d for intrusion detection, and the optical fiber for water leakage detection. The water leak detection means 8 is connected to the cable 1e.

  In the third embodiment, the fire detection means 6 uses Raman scattering anti-Stokes light for the detection method, and the intrusion detection means 7 and the water leakage detection means 8 both use Rayleigh scattering for the detection method.

  Moreover, also in 3rd Embodiment, the optical fiber cable 1e has the same structure as the optical fiber cable 1a similarly to 1st Embodiment. According to such a configuration, in particular, the occurrence and location of fire can be detected quickly and with higher resolution, and the occurrence and location of intrusion and water leakage can be detected with higher resolution.

<Fourth embodiment>
FIG. 6 shows a fourth embodiment of the disaster prevention system according to the present invention. In the fourth embodiment, as in the third embodiment, the detection optical fiber cable 1 includes an optical fiber cable 1b for temperature detection due to fire, an optical fiber cable 1f for detection of intrusion, and a detection of water leakage. The optical fiber cable 1e is bundled into one, and the fire detection means 6 is connected to the optical fiber cable 1b for temperature detection due to fire, the intrusion detection means 7 is connected to the optical fiber cable 1f for detection of intrusion, and the water leaks. The water leakage detection means 8 is connected to the end of the optical fiber cable 1e for detection.

  In the fourth embodiment, the fire detection means 6 uses Raman scattering anti-Stokes light for the detection method, the intrusion detection means 7 uses the optical fiber ring interference type for the detection method, and the water leakage detection means 8 detects Rayleigh scattering. It is used for the method.

  Further, inside the optical fiber ring type sensor terminator 26 of the two optical fiber cables 1f, two optical fibers are provided at both ends of an optical fiber 27 having a predetermined length wound around a bobbin (not shown). Each end of the cable 1f is connected. The optical fiber 27 having a predetermined length is connected so as not to generate a non-sensing portion where vibration is sensed in the optical fiber ring interference type. The predetermined length is obtained by designing according to conditions such as the length of the optical fiber cable 1f at the time of laying. In the fourth embodiment, an optical fiber 27 having a length of 2 km is connected. In the fourth embodiment, the optical fiber bobbin is installed in the optical fiber ring type sensor terminator 26. However, the installation location is not limited to the optical fiber ring type sensor terminator 26, and the position where the non-sensing location is eliminated. Any position is acceptable.

  Moreover, also in 4th Embodiment, the optical fiber cable 1e has the same structure as the optical fiber cable 1a similarly to 1st Embodiment. According to such a configuration, the occurrence and location of a fire can be detected promptly and with higher resolution, the intrusion can be detected promptly and with higher resolution, and the occurrence and occurrence of water leakage can be further detected. Can be detected with resolution.

DESCRIPTION OF SYMBOLS 1 Optical fiber cable 1a for detection Optical fiber cable 1b for temperature, intrusion, and leak detection by fire Optical fiber cable 1c for temperature detection by fire Optical fiber cable 1d for intrusion and leak detection Light for intrusion detection Fiber cable 1e Optical fiber cable 1f for water leakage detection Optical fiber cable 1g for intrusion detection Optical fiber cable 2 Optical fiber cable 2a Optical fiber core wire 3 Wire 4 Disaster prevention receiver 5 Brillouin scattering detection means 6 Fire detection Means 7 Intrusion detection means 8 Water leakage detection means 9 Alarm generation means 10 Notification means 11 Wiring 12 Alarm device 13 Communication line 14 Light source part 15 Information control part 16 Control part 17 Information display terminal 18 Controller 19 Terminator 20 Illuminator 21 For communication Optical fiber cable 22 Outer coating 23 Polymer water-absorbing material 24 Non-deformable member 25 With water Swollen not or contracted without member 26 optical fiber ring sensor terminator 27 optical fiber 28 Building 29 entrance 30 path 31 wall 32 interior lights 33 Air conditioning 34 telephone 35 information terminal 36 monitors cameras Te

Claims (10)

Including at least one optical fiber cable for detection for detecting temperature, intrusion, and water leakage due to fire, and one wire bundled with an optical fiber cable for illumination and a communication optical fiber cable for illuminating a monitoring area, The wire is laid at a predetermined location to be monitored, and includes a disaster prevention receiver connected to the optical fiber cable for detection,
The disaster prevention receiver is connected to the optical fiber cable for detection to detect a fire temperature, a fire detecting means for detecting intrusion, an intrusion detecting means for detecting intrusion, a water leak detecting means for detecting water leakage, the fire detecting means, the intrusion A detecting means, an alarm generating means for receiving an abnormality signal detected by the water leakage detecting means, and issuing an alarm; and an informing means for informing the outside of the abnormality content and the abnormality occurrence location according to the abnormality signal, the communication optical fiber A disaster prevention system comprising an information control unit connected to a cable and a communication line.   The illumination optical fiber cable is composed of a plurality of optical fiber cores, connects each optical fiber core and a light source unit, and detects an abnormal signal detected by the fire detection means, the intrusion detection means, and the water leakage detection means. A control unit having a function of controlling a light amount of a light source unit of an optical fiber core wire of the illumination optical fiber cable arranged in a monitoring area where an abnormality occurrence point occurs when received is received. The disaster prevention system according to 1.   The communication optical fiber cable distributes information from the disaster prevention receiver via the information control unit, and the communication optical fiber cable is obtained by the communication line connected to the disaster prevention receiver. A terminal for distributing information from the outside via the information control unit and displaying information on the opposite end of the disaster prevention receiver to which the communication optical fiber cable is connected and / or a controller for controlling a predetermined device The disaster prevention system according to claim 1 or 2, characterized in that.   The disaster prevention system according to any one of claims 1 to 3, wherein the optical fiber cable for detection is composed of a single optical fiber cable.   The optical fiber cable for detection is composed of an optical fiber cable for detecting a temperature due to a fire and an optical fiber cable for detecting an intrusion and leakage of water, which are bundled with the wire to detect the temperature due to a fire. 4. The fire detection means is connected to an optical fiber cable, and the intrusion detection means and the water leak detection means are connected to an optical fiber cable for intrusion and leakage detection. The disaster prevention system according to item 1.   The optical fiber cable for detection includes a plurality of optical fiber cables for detecting temperature, intrusion, and water leakage caused by fire, bundled with the wire, and is configured to detect temperature, intrusion, and water leak due to fire. The disaster prevention system according to any one of claims 1 to 3, wherein the fire detection unit, the intrusion detection unit, and the water leakage detection unit are separately connected to a conventional optical fiber cable.   5. The fire detection means, the intrusion detection means, and the water leakage detection means of the disaster prevention receiver all use Brillouin scattering as a single Brillouin scattering detection means. The disaster prevention system according to any one of the above.   The fire detection means included in the disaster prevention receiver uses Raman scattering for the detection method, and the intrusion detection means and the water leakage detection means use Rayleigh scattering for the detection method. 6. The disaster prevention system according to any one of items 6.   The fire detection means included in the disaster prevention receiver uses Raman scattering as a detection method, the intrusion detection means uses an optical fiber ring interference type as a detection method, and the water leakage detection means includes Rayleigh scattering. The disaster prevention system according to any one of claims 1 to 6, wherein the system is used for a detection method.   The disaster prevention system according to any one of claims 1 to 9, wherein the wire is laid on a predetermined floor to be detected.